/Engine/Plugins/MovieScene/SequencerScripting/Source/SequencerScripting/Public/ExtensionLibraries/MovieSceneSequenceExtensions.h
The given user marked frame to add
The index to the newly added marked frame
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Sequencer|Sequence", Meta=(ScriptMethod)) static int32 AddMarkedFrame ( [UMovieSceneSequence](API\Runtime\MovieScene\UMovieSceneSequence) * Sequence, const [FMovieSceneMarkedFrame](API\Runtime\MovieScene\FMovieSceneMarkedFrame) & InMarkedFrame )